ul{
    list-style: none;
    margin: 0;
    padding:0;
}
.clearfix::after{
    content: '';
    display: block;
    clear: both;
}
a{
    text-decoration: none;
    color: #333;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
img{
    vertical-align: middle;
}
.header{
    width: 100%;
    min-width:1200px;
    background-color: rgb(83, 119, 201);
}
.header-heart{
    width: 1200px;
    margin: 0 auto;
}
.header-heart-ul-li{
    float: left;
}
.header-heart-ul-li a{
    display: inline-block;
     padding: 30px;
     color: #eee;
     transition: 0.2s;
}
.header-heart-ul-li:nth-child(1) a{
    font-size: 24px;
    font-weight:bold;
    padding: 25px 30px;
}
.header-heart-ul-li:not(:first-child):hover a{
     color: rgb(240, 131, 76);
}
.header-heart-ul-li:nth-child(5) a{
    font-size: 18px;
    font-weight:bold;
    color: rgb(240, 131, 76);
}
.nav{
    width: 100%;
    min-width: 1200px;
    background-color: #fff;
    padding: 50px 0;
    box-shadow: 0 0 20px -5px rgba(0, 0, 0, 0.5);
}
.nav-heart{
    width: 1200px;
    margin: 0 auto;
}
.nav-top{
    width: 100%;
    padding-bottom: 10px;
    border-bottom: 1px solid #ddd;
}
.nav-top span:nth-of-type(1){
        font-size: 20px;
        margin-right: 5px;
}
.nav-top span:nth-of-type(2){
    font-size: 12px;
    color: #969696;
    transition: 0.2s;
    cursor: pointer;
}
.nav-top span:nth-of-type(2):hover{
     color: rgb(102, 113, 228);
}
.nav-body{
    padding-top:20px;
}
.nav-body-ul:nth-of-type(1){
    width: 100%;
    padding-bottom: 20px;
}
.nav-body-ul:nth-of-type(2){
    width: 100%;
    padding-bottom: 20px;
}
.nav-body-ul:nth-of-type(3){
    width: 100%;
}
.nav-body-ul .nav-body-ul-li{
    float: left;
}
.nav-body-ul .nav-body-ul-li a{
    display: inline-block;
    padding:10px 12px;
    border-radius:10%;
    transition: 0.2s;
}
.nav-body-ul .nav-body-ul-li:nth-child(1) a{
    color: #969696;
}
.nav-body-ul .nav-body-ul-li:nth-child(2) a{
    background-color: rgb(83, 119, 201);
    color: #eee;
}
.nav-body-ul .nav-body-ul-li:not(:nth-of-type(1)) a:hover{
      color:  rgb(83, 119, 201);
}
.nav-body-ul .nav-body-ul-li:not(:nth-child(2)) a:hover{
      color:  rgb(83, 119, 201);
}
.content{
    width: 100%;
    min-width: 1200px;
    background-color: #eee;
    padding: 50px 0;
}
.content-heart{
    width: 1200px;
    margin: 0 auto;
}
.content-heart-ul-li{
    float: left;
}
.content-heart-ul-li a{
    display: inline-block;
    padding: 10px 18px;
    text-align: center;
    transition: 0.3s;
}
.content-heart-ul-li a:hover{
    padding-top: 13px;
    padding-bottom: 13px;
    margin-top: -6px;
    background-color:rgb(83, 119, 201);
    box-shadow: 0px -3px 3px 0px rgba(0, 0, 0, 0.5);
    color: #eee;
}
.content-heart-ul-li:nth-child(1) a{
     padding-top: 13px;
     padding-bottom: 13px;
     background-color:rgb(83, 119, 201);
     color: #eee;
     margin-top: -6px;
     box-shadow: 0px -3px 3px 0px rgba(0, 0, 0, 0.5);
}
.content-heart .body{
    width: 1200px;
    background-color: #fff;
    padding: 20px;
    box-sizing: border-box;
}
.body-ul-li{
    margin-right: 20px;
    margin-bottom:20px;
    position: relative;
    float: left;
    width: calc((100% - 20px * 4) / 4);
    transition:0.2s cubic-bezier(1,-0.38,.07,1.21);
    overflow: hidden;
}
.body-ul-li .m1{
    position: relative;
    display: inline-block;
    width:100%;
    height:360px;
}
.body-ul-li img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.body-font{
    position: absolute;
    width: 100%;
    height: 50%;
    background-color: rgba(227, 227, 227, .8);
    left: 0;
    bottom: 0;
    opacity: 0;
    visibility: hidden;
    transition: 0.2s;
}
.body-font h3,.body-font p{
    margin: 0;
    padding: 0;
}
.body-font h3{
    font-size: 24px;
    margin-bottom: 10px;
}
.body-font h3 span{
    font-size: 16px;
}
.body .body-font p{
    margin-top: 10px;
    font-size: 16px;
}
.body .body-font p:nth-of-type(2){
    width: 120px;
    height: 40px;
    background-color: rgb(83, 119, 201);
    line-height: 40px;
    color: #eee;
    text-align: center;
    border-radius: 10px;
    cursor: pointer;
}
.body p:nth-of-type(2):hover{
    color: #333;
}
.m1:hover .body-font{
    opacity: 1;
    visibility:visible;
}
.m1:hover{
    transform: scale(1.01) translate(0,-5px);
    box-shadow: 0 10px 25px -13px rgba(0, 0, 0, 0.8);
}
.body-ul-li p{
  margin: 0;
  padding: 0;
  color: #969696;
}
.body-ul-li h3{
    margin: 0;
    padding: 0;
    margin-bottom: 10px;
}